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  1. By: Zonfrillo, Bernard - Hancock, E G
    Type: Article
    In: The Glasgow naturalist
    Volume: 24
    Issue: 2
    Date: 2004
    Page Range: 137--140
    Publication Info: Glasgow, Glasgow Natural History Society,
  2. By: Davis, Herlitz - Zonfrillo, Bernard
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 120
    Date: 2000
    Page Range: 58--58
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Zonfrillo, Bernard
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 136
    Issue: 3
    Date: 2016
    Page Range: 209--213
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Zonfrillo, Bernard
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 108
    Date: 1988
    Page Range: 71--75
    Publication Info: London, British Ornithologists' Club, 1893-
  5. By: Zonfrillo, Bernard - Thomson, H - Stewart, R A
    Type: Article
    In: The Glasgow naturalist
    Volume: 24
    Issue: 1
    Date: 2002
    Page Range: 102--103
    Publication Info: Glasgow, Glasgow Natural History Society,